Starting with the four-letter word, build a succession of words to end up with the five-letter word. Letters from the five-letter word are given to the four-letter words and unnecessary letters are taken off of the five-letter words.
For example; Starting with "VEST" add an "O" from "SHORT" and anagram for "STOVE". Drop the "V" from "STOVE" and anagram to get "TOES"...etc
START 5 LTR 4 LTR 5 LTR 4 LTR FINISH
Example:
VEST STOVE TOES THOSE SHOT SHORT
-1. RASP GRATE
2. NOTE WRITE
3. TRAP SNARE
4. RAGE WRATH
5. REST BREAK
6. SAME ALIKE
7. DIRT EARTH
8. SANE SOUND
-9. LIFT STEAL
10. MOST LEAST